Record of a variable value-assignment, aka a non instruction representation of the dbg.value intrinsic. More...

#include "llvm/IR/DebugProgramInstruction.h"

Inheritance diagram for llvm::DbgVariableRecord:

[legend]

Classes
class	location_op_iterator
	Iterator for ValueAsMetadata that internally uses direct pointer iteration over either a ValueAsMetadata* or a ValueAsMetadata**, dereferencing to the ValueAsMetadata . More...

Public Types
enum class	LocationType : uint8_t { Declare , Value , Assign , End , Any }

Public Types inherited from llvm::DbgRecord
enum	Kind : uint8_t { ValueKind , LabelKind }
	Subclass discriminator. More...

using	self_iterator = simple_ilist< DbgRecord >::iterator

using	const_self_iterator = simple_ilist< DbgRecord >::const_iterator

Public Member Functions
	DbgVariableRecord (const DbgVariableIntrinsic *DVI)
	Create a new DbgVariableRecord representing the intrinsic `DVI`, for example the assignment represented by a dbg.value.

	DbgVariableRecord (const DbgVariableRecord &DVR)

	DbgVariableRecord (Metadata Location, DILocalVariable DV, DIExpression Expr, const DILocation DI, LocationType Type=LocationType::Value)
	Directly construct a new DbgVariableRecord representing a dbg.value intrinsic assigning `Location` to the DV / Expr / DI variable.

	DbgVariableRecord (Metadata Value, DILocalVariable Variable, DIExpression Expression, DIAssignID AssignID, Metadata Address, DIExpression AddressExpression, const DILocation *DI)

bool	isDbgDeclare ()

bool	isDbgValue ()

iterator_range< location_op_iterator >	location_ops () const
	Get the locations corresponding to the variable referenced by the debug info intrinsic.

Value *	getVariableLocationOp (unsigned OpIdx) const

void	replaceVariableLocationOp (Value OldValue, Value NewValue, bool AllowEmpty=false)

void	replaceVariableLocationOp (unsigned OpIdx, Value *NewValue)

void	addVariableLocationOps (ArrayRef< Value * > NewValues, DIExpression *NewExpr)
	Adding a new location operand will always result in this intrinsic using an ArgList, and must always be accompanied by a new expression that uses the new operand.

unsigned	getNumVariableLocationOps () const

bool	hasArgList () const

bool	hasValidLocation () const
	Returns true if this DbgVariableRecord has no empty MDNodes in its location list.

bool	isAddressOfVariable () const
	Does this describe the address of a local variable.

LocationType	getType () const

void	setKillLocation ()

bool	isKillLocation () const

void	setVariable (DILocalVariable *NewVar)

DILocalVariable *	getVariable () const

MDNode *	getRawVariable () const

void	setExpression (DIExpression *NewExpr)

DIExpression *	getExpression () const

MDNode *	getRawExpression () const

Metadata *	getRawLocation () const
	Returns the metadata operand for the first location description.

Value *	getValue (unsigned OpIdx=0) const

void	setRawLocation (Metadata *NewLocation)
	Use of this should generally be avoided; instead, replaceVariableLocationOp and addVariableLocationOps should be used where possible to avoid creating invalid state.

std::optional< uint64_t >	getFragmentSizeInBits () const
	Get the size (in bits) of the variable, or fragment of the variable that is described.

bool	isEquivalentTo (const DbgVariableRecord &Other) const

bool	isIdenticalToWhenDefined (const DbgVariableRecord &Other) const

DbgVariableRecord *	clone () const

DbgVariableIntrinsic *	createDebugIntrinsic (Module M, Instruction InsertBefore) const
	Convert this DbgVariableRecord back into a dbg.value intrinsic.

void	handleChangedLocation (Metadata *NewLocation)
	Handle changes to the location of the Value(s) that we refer to happening "under our feet".

void	print (raw_ostream &O, bool IsForDebug=false) const

void	print (raw_ostream &ROS, ModuleSlotTracker &MST, bool IsForDebug) const

DbgAssign Methods
bool	isDbgAssign () const

Value *	getAddress () const

Metadata *	getRawAddress () const

Metadata *	getRawAssignID () const

DIAssignID *	getAssignID () const

DIExpression *	getAddressExpression () const

MDNode *	getRawAddressExpression () const

void	setAddressExpression (DIExpression *NewExpr)

void	setAssignId (DIAssignID *New)

void	setAddress (Value *V)

void	setKillAddress ()
	Kill the address component.

bool	isKillAddress () const
	Check whether this kills the address component.

Public Member Functions inherited from llvm::DbgRecord
	DbgRecord (Kind RecordKind, DebugLoc DL)

bool	isEquivalentTo (const DbgRecord &R) const
	Same as isIdenticalToWhenDefined but checks DebugLoc too.

Kind	getRecordKind () const

void	setMarker (DbgMarker *M)

DbgMarker *	getMarker ()

const DbgMarker *	getMarker () const

BasicBlock *	getBlock ()

const BasicBlock *	getBlock () const

Function *	getFunction ()

const Function *	getFunction () const

Module *	getModule ()

const Module *	getModule () const

LLVMContext &	getContext ()

const LLVMContext &	getContext () const

const Instruction *	getInstruction () const

const BasicBlock *	getParent () const

BasicBlock *	getParent ()

void	removeFromParent ()

void	eraseFromParent ()

DbgRecord *	getNextNode ()

DbgRecord *	getPrevNode ()

void	insertBefore (DbgRecord *InsertBefore)

void	insertAfter (DbgRecord *InsertAfter)

void	moveBefore (DbgRecord *MoveBefore)

void	moveAfter (DbgRecord *MoveAfter)

DebugLoc	getDebugLoc () const

void	setDebugLoc (DebugLoc Loc)

void	dump () const

void	deleteRecord ()
	Methods that dispatch to subclass implementations.

DbgRecord *	clone () const

void	print (raw_ostream &O, bool IsForDebug=false) const

void	print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug) const

bool	isIdenticalToWhenDefined (const DbgRecord &R) const

DbgInfoIntrinsic *	createDebugIntrinsic (Module M, Instruction InsertBefore) const
	Convert this DbgRecord back into an appropriate llvm.dbg.

Public Member Functions inherited from llvm::ilist_node_impl< OptionsT >
self_iterator	getIterator ()

const_self_iterator	getIterator () const

reverse_self_iterator	getReverseIterator ()

const_reverse_self_iterator	getReverseIterator () const

bool	isSentinel () const
	Check whether this is the sentinel node.

Static Public Member Functions
static DbgVariableRecord *	createUnresolvedDbgVariableRecord (LocationType Type, Metadata Val, MDNode Variable, MDNode Expression, MDNode AssignID, Metadata Address, MDNode AddressExpression, MDNode *DI)
	Used to create DbgVariableRecords during parsing, where some metadata references may still be unresolved.

static DbgVariableRecord *	createDVRAssign (Value Val, DILocalVariable Variable, DIExpression Expression, DIAssignID AssignID, Value Address, DIExpression AddressExpression, const DILocation *DI)

static DbgVariableRecord *	createLinkedDVRAssign (Instruction LinkedInstr, Value Val, DILocalVariable Variable, DIExpression Expression, Value Address, DIExpression AddressExpression, const DILocation *DI)

static DbgVariableRecord *	createDbgVariableRecord (Value Location, DILocalVariable DV, DIExpression Expr, const DILocation DI)

static DbgVariableRecord *	createDbgVariableRecord (Value Location, DILocalVariable DV, DIExpression Expr, const DILocation DI, DbgVariableRecord &InsertBefore)

static DbgVariableRecord *	createDVRDeclare (Value Address, DILocalVariable DV, DIExpression Expr, const DILocation DI)

static DbgVariableRecord *	createDVRDeclare (Value Address, DILocalVariable DV, DIExpression Expr, const DILocation DI, DbgVariableRecord &InsertBefore)

static bool	classof (const DbgRecord *E)
	Support type inquiry through isa, cast, and dyn_cast.

Public Attributes
LocationType	Type
	Classification of the debug-info record that this DbgVariableRecord represents.

DbgRecordParamRef< DILocalVariable >	Variable

DbgRecordParamRef< DIExpression >	Expression

DbgRecordParamRef< DIExpression >	AddressExpression

Public Attributes inherited from llvm::DbgRecord
DbgMarker *	Marker = nullptr
	Marker that this DbgRecord is linked into.

Friends
class	DebugValueUser

Additional Inherited Members
Protected Types inherited from llvm::ilist_node_impl< OptionsT >
using	self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, false, false >::type

using	const_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, false, true >::type

using	reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, true, false >::type

using	const_reverse_self_iterator = typename ilist_select_iterator_type< OptionsT::has_iterator_bits, OptionsT, true, true >::type

Protected Member Functions inherited from llvm::DbgRecord
	~DbgRecord ()=default
	Similarly to Value, we avoid paying the cost of a vtable by protecting the dtor and having deleteRecord dispatch cleanup.

Protected Member Functions inherited from llvm::ilist_node_impl< OptionsT >
	ilist_node_impl ()=default

Protected Member Functions inherited from llvm::DebugValueUser
ArrayRef< Metadata * >	getDebugValues () const

DbgVariableRecord *	getUser ()

const DbgVariableRecord *	getUser () const

void	handleChangedValue (void Old, Metadata NewDebugValue)
	To be called by ReplaceableMetadataImpl::replaceAllUsesWith, where `Old` is a pointer to one of the pointers in `DebugValues` (so should be type Metadata*), and `NewDebugValue` is the new Metadata that is replacing *Old.

	DebugValueUser ()=default

	DebugValueUser (std::array< Metadata *, 3 > DebugValues)

	DebugValueUser (DebugValueUser &&X)

	DebugValueUser (const DebugValueUser &X)

DebugValueUser &	operator= (DebugValueUser &&X)

DebugValueUser &	operator= (const DebugValueUser &X)

	~DebugValueUser ()

void	resetDebugValues ()

void	resetDebugValue (size_t Idx, Metadata *DebugValue)

bool	operator== (const DebugValueUser &X) const

bool	operator!= (const DebugValueUser &X) const

Protected Attributes inherited from llvm::DbgRecord
DebugLoc	DbgLoc

Kind	RecordKind
	Subclass discriminator.

Protected Attributes inherited from llvm::DebugValueUser
std::array< Metadata *, 3 >	DebugValues

Detailed Description

Record of a variable value-assignment, aka a non instruction representation of the dbg.value intrinsic.

This class inherits from DebugValueUser to allow LLVM's metadata facilities to update our references to metadata beneath our feet.

Definition at line 262 of file DebugProgramInstruction.h.

Member Enumeration Documentation

◆ LocationType

enum class llvm::DbgVariableRecord::LocationType : uint8_t

strong

Enumerator
Declare
Value
Assign
End	Marks the end of the concrete types.
Any	To indicate all LocationTypes in searches.

Definition at line 266 of file DebugProgramInstruction.h.

Constructor & Destructor Documentation

◆ DbgVariableRecord() [1/4]

llvm::DbgVariableRecord::DbgVariableRecord ( const DbgVariableIntrinsic * DVI )

Create a new DbgVariableRecord representing the intrinsic DVI, for example the assignment represented by a dbg.value.

Definition at line 31 of file DebugProgramInstruction.cpp.

References llvm::DbgVariableIntrinsic::getRawLocation().

◆ DbgVariableRecord() [2/4]

llvm::DbgVariableRecord::DbgVariableRecord ( const DbgVariableRecord & DVR )

Definition at line 58 of file DebugProgramInstruction.cpp.

◆ DbgVariableRecord() [3/4]

llvm::DbgVariableRecord::DbgVariableRecord	(	Metadata *	Location,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI,
		LocationType	Type = `LocationType::Value`
	)

Directly construct a new DbgVariableRecord representing a dbg.value intrinsic assigning Location to the DV / Expr / DI variable.

Definition at line 64 of file DebugProgramInstruction.cpp.

◆ DbgVariableRecord() [4/4]

llvm::DbgVariableRecord::DbgVariableRecord	(	Metadata *	Value,
		DILocalVariable *	Variable,
		DIExpression *	Expression,
		DIAssignID *	AssignID,
		Metadata *	Address,
		DIExpression *	AddressExpression,
		const DILocation *	DI
	)

Definition at line 70 of file DebugProgramInstruction.cpp.

References llvm::Address, and Value.

Member Function Documentation

◆ addVariableLocationOps()

void llvm::DbgVariableRecord::addVariableLocationOps	(	ArrayRef< Value * >	NewValues,
		DIExpression *	NewExpr
	)

Adding a new location operand will always result in this intrinsic using an ArgList, and must always be accompanied by a new expression that uses the new operand.

Definition at line 340 of file DebugProgramInstruction.cpp.

References assert(), llvm::DIArgList::get(), llvm::getAsMetadata(), llvm::DbgRecord::getContext(), getNumVariableLocationOps(), getVariableLocationOp(), llvm::is_contained(), location_ops(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), setExpression(), setRawLocation(), and llvm::ArrayRef< T >::size().

◆ classof()

static bool llvm::DbgVariableRecord::classof ( const DbgRecord * E )

inlinestatic

Support type inquiry through isa, cast, and dyn_cast.

Definition at line 525 of file DebugProgramInstruction.h.

References E, and llvm::DbgRecord::ValueKind.

◆ clone()

DbgVariableRecord * llvm::DbgVariableRecord::clone ( ) const

Definition at line 390 of file DebugProgramInstruction.cpp.

Referenced by insertDbgVariableRecordsForPHIs().

◆ createDbgVariableRecord() [1/2]

DbgVariableRecord * llvm::DbgVariableRecord::createDbgVariableRecord	(	Value *	Location,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI
	)

static

Definition at line 179 of file DebugProgramInstruction.cpp.

References llvm::ValueAsMetadata::get(), and Value.

Referenced by createDbgVariableRecord().

◆ createDbgVariableRecord() [2/2]

DbgVariableRecord * llvm::DbgVariableRecord::createDbgVariableRecord	(	Value *	Location,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI,
		DbgVariableRecord &	InsertBefore
	)

static

Definition at line 186 of file DebugProgramInstruction.cpp.

References createDbgVariableRecord().

◆ createDebugIntrinsic()

DbgVariableIntrinsic * llvm::DbgVariableRecord::createDebugIntrinsic	(	Module *	M,
		Instruction *	InsertBefore
	)		const

Convert this DbgVariableRecord back into a dbg.value intrinsic.

InsertBefore Optional position to insert this intrinsic.

Returns: A new dbg.value intrinsic representiung this DbgVariableRecord.

Definition at line 399 of file DebugProgramInstruction.cpp.

References Any, assert(), Assign, Context, llvm::CallInst::Create(), Declare, End, llvm::DebugLoc::get(), llvm::MetadataAsValue::get(), getAddressExpression(), getAssignID(), llvm::MDNode::getContext(), llvm::DbgRecord::getDebugLoc(), llvm::Intrinsic::getDeclaration(), getExpression(), llvm::Function::getFunctionType(), getRawAddress(), getRawLocation(), getType(), getVariable(), llvm::Instruction::insertBefore(), isDbgAssign(), llvm_unreachable, llvm::Instruction::setDebugLoc(), llvm::CallInst::setTailCall(), and Value.

◆ createDVRAssign()

DbgVariableRecord * llvm::DbgVariableRecord::createDVRAssign	(	Value *	Val,
		DILocalVariable *	Variable,
		DIExpression *	Expression,
		DIAssignID *	AssignID,
		Value *	Address,
		DIExpression *	AddressExpression,
		const DILocation *	DI
	)

static

Definition at line 211 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, llvm::ValueAsMetadata::get(), and Variable.

Referenced by createLinkedDVRAssign(), and llvm::DIBuilder::insertDbgAssign().

◆ createDVRDeclare() [1/2]

DbgVariableRecord * llvm::DbgVariableRecord::createDVRDeclare	(	Value *	Address,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI
	)

static

Definition at line 194 of file DebugProgramInstruction.cpp.

References llvm::Address, Declare, and llvm::ValueAsMetadata::get().

Referenced by createDVRDeclare(), and insertNewDbgInst().

◆ createDVRDeclare() [2/2]

DbgVariableRecord * llvm::DbgVariableRecord::createDVRDeclare	(	Value *	Address,
		DILocalVariable *	DV,
		DIExpression *	Expr,
		const DILocation *	DI,
		DbgVariableRecord &	InsertBefore
	)

static

Definition at line 203 of file DebugProgramInstruction.cpp.

References llvm::Address, and createDVRDeclare().

◆ createLinkedDVRAssign()

DbgVariableRecord * llvm::DbgVariableRecord::createLinkedDVRAssign	(	Instruction *	LinkedInstr,
		Value *	Val,
		DILocalVariable *	Variable,
		DIExpression *	Expression,
		Value *	Address,
		DIExpression *	AddressExpression,
		const DILocation *	DI
	)

static

Definition at line 220 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, assert(), createDVRAssign(), llvm::Instruction::getMetadata(), llvm::Instruction::getParent(), llvm::BasicBlock::insertDbgRecordAfter(), and Variable.

Referenced by emitDbgAssign(), and insertNewDbgInst().

◆ createUnresolvedDbgVariableRecord()

DbgVariableRecord * llvm::DbgVariableRecord::createUnresolvedDbgVariableRecord	(	DbgVariableRecord::LocationType	Type,
		Metadata *	Val,
		MDNode *	Variable,
		MDNode *	Expression,
		MDNode *	AssignID,
		Metadata *	Address,
		MDNode *	AddressExpression,
		MDNode *	DI
	)

static

Used to create DbgVariableRecords during parsing, where some metadata references may still be unresolved.

Although for some fields a generic Metadata* argument is accepted for forward type-references, the verifier and accessors will reject incorrect types later on. The function is used for all types of DbgVariableRecords for simplicity while parsing, but asserts if any necessary fields are empty or unused fields are not empty, i.e. if the #dbg_assign fields are used for a non-dbg-assign type.

Definition at line 170 of file DebugProgramInstruction.cpp.

References llvm::Address, AddressExpression, and Variable.

◆ getAddress()

Value * llvm::DbgVariableRecord::getAddress ( ) const

Definition at line 470 of file DebugProgramInstruction.cpp.

References assert(), and getRawAddress().

Referenced by fixupDebugInfoPostExtraction(), isKillAddress(), replaceVariableLocationOp(), and setKillAddress().

◆ getAddressExpression()

DIExpression * llvm::DbgVariableRecord::getAddressExpression ( ) const

inline

Definition at line 491 of file DebugProgramInstruction.h.

References AddressExpression.

Referenced by createDebugIntrinsic(), insertNewDbgInst(), and llvm::ValueEnumerator::ValueEnumerator().

◆ getAssignID()

DIAssignID * llvm::DbgVariableRecord::getAssignID ( ) const

Definition at line 480 of file DebugProgramInstruction.cpp.

References llvm::DebugValueUser::DebugValues.

Referenced by createDebugIntrinsic(), llvm::at::getAssignmentInsts(), getIDFromMarker(), and llvm::ValueEnumerator::ValueEnumerator().

◆ getExpression()

DIExpression * llvm::DbgVariableRecord::getExpression ( ) const

inline

Definition at line 441 of file DebugProgramInstruction.h.

Referenced by buildOverlapMapAndRecordDeclares(), llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), DbgVariableRecordsRemoveRedundantDbgInstrsUsingBackwardScan(), getFragmentOrEntireVariable(), getFragmentSizeInBits(), llvm::FastISel::handleDbgInfo(), isKillLocation(), llvm::coro::salvageDebugInfo(), llvm::ValueEnumerator::ValueEnumerator(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ getFragmentSizeInBits()

std::optional< uint64_t > llvm::DbgVariableRecord::getFragmentSizeInBits ( ) const

Get the size (in bits) of the variable, or fragment of the variable that is described.

Definition at line 374 of file DebugProgramInstruction.cpp.

References getExpression(), llvm::DIVariable::getSizeInBits(), and getVariable().

Referenced by getFragmentOrEntireVariable(), and valueCoversEntireFragment().

◆ getNumVariableLocationOps()

unsigned llvm::DbgVariableRecord::getNumVariableLocationOps ( ) const

Definition at line 257 of file DebugProgramInstruction.cpp.

References getRawLocation(), and hasArgList().

Referenced by addVariableLocationOps(), isKillLocation(), replaceVariableLocationOp(), and valueCoversEntireFragment().

◆ getRawAddress()

Metadata * llvm::DbgVariableRecord::getRawAddress ( ) const

inline

Definition at line 486 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues, and isDbgAssign().

Referenced by createDebugIntrinsic(), getAddress(), and llvm::ValueEnumerator::ValueEnumerator().

◆ getRawAddressExpression()

MDNode * llvm::DbgVariableRecord::getRawAddressExpression ( ) const

inline

Definition at line 492 of file DebugProgramInstruction.h.

References AddressExpression.

◆ getRawAssignID()

Metadata * llvm::DbgVariableRecord::getRawAssignID ( ) const

inline

Definition at line 489 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues.

◆ getRawExpression()

MDNode * llvm::DbgVariableRecord::getRawExpression ( ) const

inline

Definition at line 442 of file DebugProgramInstruction.h.

◆ getRawLocation()

Metadata * llvm::DbgVariableRecord::getRawLocation ( ) const

inline

Returns the metadata operand for the first location description.

i.e., dbg intrinsic dbg.value,declare operand and dbg.assign 1st location operand (the "value componenet"). Note the operand (singular) may be a DIArgList which is a list of values.

Definition at line 448 of file DebugProgramInstruction.h.

References llvm::DebugValueUser::DebugValues.

Referenced by buildOverlapMapAndRecordDeclares(), createDebugIntrinsic(), getNumVariableLocationOps(), getVariableLocationOp(), hasArgList(), location_ops(), and llvm::ValueEnumerator::ValueEnumerator().

◆ getRawVariable()

MDNode * llvm::DbgVariableRecord::getRawVariable ( ) const

inline

Definition at line 438 of file DebugProgramInstruction.h.

References Variable.

◆ getType()

LocationType llvm::DbgVariableRecord::getType ( ) const

inline

Definition at line 431 of file DebugProgramInstruction.h.

References Type.

Referenced by createDebugIntrinsic(), DbgVariableRecordsRemoveRedundantDbgInstrsUsingBackwardScan(), llvm::FastISel::handleDbgInfo(), isDbgAssign(), llvm::coro::salvageDebugInfo(), setKillAddress(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ getValue()

Value * llvm::DbgVariableRecord::getValue ( unsigned OpIdx = 0 ) const

inline

Definition at line 450 of file DebugProgramInstruction.h.

References getVariableLocationOp().

Referenced by insertNewDbgInst().

◆ getVariable()

DILocalVariable * llvm::DbgVariableRecord::getVariable ( ) const

inline

Definition at line 437 of file DebugProgramInstruction.h.

References Variable.

Referenced by buildFrameDebugInfo(), llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), DbgVariableRecordsRemoveRedundantDbgInstrsUsingBackwardScan(), findVarsWithStackSlot(), fixupDebugInfoPostExtraction(), getAggregateVariable(), getFragmentSizeInBits(), llvm::FastISel::handleDbgInfo(), insertNewDbgInst(), llvm::ValueEnumerator::ValueEnumerator(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ getVariableLocationOp()

Value * llvm::DbgVariableRecord::getVariableLocationOp ( unsigned OpIdx ) const

Definition at line 263 of file DebugProgramInstruction.cpp.

References assert(), and getRawLocation().

Referenced by addVariableLocationOps(), getValue(), llvm::FastISel::handleDbgInfo(), hasValidLocation(), replaceVariableLocationOp(), llvm::coro::salvageDebugInfo(), valueCoversEntireFragment(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ handleChangedLocation()

void llvm::DbgVariableRecord::handleChangedLocation ( Metadata * NewLocation )

Handle changes to the location of the Value(s) that we refer to happening "under our feet".

◆ hasArgList()

bool llvm::DbgVariableRecord::hasArgList ( ) const

inline

Definition at line 423 of file DebugProgramInstruction.h.

References getRawLocation().

Referenced by getNumVariableLocationOps(), llvm::FastISel::handleDbgInfo(), replaceVariableLocationOp(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ hasValidLocation()

bool llvm::DbgVariableRecord::hasValidLocation ( ) const

inline

Returns true if this DbgVariableRecord has no empty MDNodes in its location list.

Definition at line 426 of file DebugProgramInstruction.h.

References getVariableLocationOp().

◆ isAddressOfVariable()

bool llvm::DbgVariableRecord::isAddressOfVariable ( ) const

inline

Does this describe the address of a local variable.

True for dbg.addr and dbg.declare, but not dbg.value, which describes its value.

Definition at line 430 of file DebugProgramInstruction.h.

References Declare.

Referenced by llvm::ConvertDebugDeclareToDebugValue(), and valueCoversEntireFragment().

◆ isDbgAssign()

bool llvm::DbgVariableRecord::isDbgAssign ( ) const

inline

Definition at line 483 of file DebugProgramInstruction.h.

References Assign, and getType().

Referenced by CastToDbgAssign(), llvm::ConvertDebugDeclareToDebugValue(), createDebugIntrinsic(), DbgVariableRecordsRemoveRedundantDbgInstrsUsingBackwardScan(), DynCastToDbgAssign(), fixupDebugInfoPostExtraction(), llvm::at::getAssignmentInsts(), getIDFromMarker(), getRawAddress(), replaceVariableLocationOp(), and llvm::ValueEnumerator::ValueEnumerator().

◆ isDbgDeclare()

bool llvm::DbgVariableRecord::isDbgDeclare ( )

inline

Definition at line 402 of file DebugProgramInstruction.h.

References Declare.

Referenced by DynCastToDbgDeclare(), insertNewDbgInst(), and llvm::coro::salvageDebugInfo().

◆ isDbgValue()

bool llvm::DbgVariableRecord::isDbgValue ( )

inline

Definition at line 403 of file DebugProgramInstruction.h.

References Value.

◆ isEquivalentTo()

bool llvm::DbgVariableRecord::isEquivalentTo ( const DbgVariableRecord & Other ) const

inline

Definition at line 469 of file DebugProgramInstruction.h.

References llvm::DbgRecord::DbgLoc, isIdenticalToWhenDefined(), and llvm::Other.

◆ isIdenticalToWhenDefined()

bool llvm::DbgVariableRecord::isIdenticalToWhenDefined ( const DbgVariableRecord & Other ) const

inline

Definition at line 474 of file DebugProgramInstruction.h.

References AddressExpression, llvm::DebugValueUser::DebugValues, llvm::Other, and Variable.

Referenced by isEquivalentTo().

◆ isKillAddress()

bool llvm::DbgVariableRecord::isKillAddress ( ) const

Check whether this kills the address component.

This doesn't take into account the position of the intrinsic, therefore a returned value of false does not guarentee the address is a valid location for the variable at the intrinsic's position in IR.

Definition at line 493 of file DebugProgramInstruction.cpp.

References Addr, and getAddress().

◆ isKillLocation()

bool llvm::DbgVariableRecord::isKillLocation ( ) const

Definition at line 368 of file DebugProgramInstruction.cpp.

References llvm::any_of(), getExpression(), getNumVariableLocationOps(), and location_ops().

◆ location_ops()

iterator_range< DbgVariableRecord::location_op_iterator > llvm::DbgVariableRecord::location_ops ( ) const

Get the locations corresponding to the variable referenced by the debug info intrinsic.

Depending on the intrinsic, this could be the variable's value or its address.

Definition at line 234 of file DebugProgramInstruction.cpp.

References assert(), and getRawLocation().

Referenced by addVariableLocationOps(), fixupDebugInfoPostExtraction(), insertDbgVariableRecordsForPHIs(), isKillLocation(), replaceVariableLocationOp(), setKillLocation(), and llvm::SelectionDAGBuilder::visitDbgInfo().

◆ print() [1/2]

void DbgVariableRecord::print	(	raw_ostream &	O,
		bool	IsForDebug = `false`
	)		const

Definition at line 4936 of file AsmWriter.cpp.

References getModuleFromDPI(), and print().

Referenced by print().

◆ print() [2/2]

void DbgVariableRecord::print	(	raw_ostream &	ROS,
		ModuleSlotTracker &	MST,
		bool	IsForDebug
	)		const

Definition at line 4963 of file AsmWriter.cpp.

References F, llvm::ModuleSlotTracker::getMachine(), getModuleFromDPI(), llvm::BasicBlock::getParent(), llvm::DbgMarker::getParent(), llvm::ModuleSlotTracker::incorporateFunction(), llvm::DbgRecord::Marker, and OS.

◆ replaceVariableLocationOp() [1/2]

void llvm::DbgVariableRecord::replaceVariableLocationOp	(	unsigned	OpIdx,
		Value *	NewValue
	)

Definition at line 320 of file DebugProgramInstruction.cpp.

References assert(), llvm::DIArgList::get(), llvm::ValueAsMetadata::get(), llvm::getAsMetadata(), llvm::DbgRecord::getContext(), getNumVariableLocationOps(), getVariableLocationOp(), hasArgList(), Idx, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and setRawLocation().

◆ replaceVariableLocationOp() [2/2]

void llvm::DbgVariableRecord::replaceVariableLocationOp	(	Value *	OldValue,
		Value *	NewValue,
		bool	AllowEmpty = `false`
	)

◆ setAddress()

void llvm::DbgVariableRecord::setAddress ( Value * V )

inline

Definition at line 499 of file DebugProgramInstruction.h.

References llvm::ValueAsMetadata::get(), and llvm::DebugValueUser::resetDebugValue().

Referenced by replaceVariableLocationOp().

◆ setAddressExpression()

void llvm::DbgVariableRecord::setAddressExpression ( DIExpression * NewExpr )

inline

Definition at line 495 of file DebugProgramInstruction.h.

References AddressExpression.

◆ setAssignId()

void llvm::DbgVariableRecord::setAssignId ( DIAssignID * New )

Definition at line 484 of file DebugProgramInstruction.cpp.

References llvm::DebugValueUser::resetDebugValue().

◆ setExpression()

void llvm::DbgVariableRecord::setExpression ( DIExpression * NewExpr )

inline

Definition at line 440 of file DebugProgramInstruction.h.

Referenced by addVariableLocationOps(), rewriteDebugUsers(), llvm::coro::salvageDebugInfo(), and updateOneDbgValueForAlloca().

◆ setKillAddress()

void llvm::DbgVariableRecord::setKillAddress ( )

Kill the address component.

Definition at line 488 of file DebugProgramInstruction.cpp.

References llvm::UndefValue::get(), llvm::ValueAsMetadata::get(), getAddress(), getType(), and llvm::DebugValueUser::resetDebugValue().

◆ setKillLocation()

void llvm::DbgVariableRecord::setKillLocation ( )

Definition at line 356 of file DebugProgramInstruction.cpp.

References llvm::PoisonValue::get(), llvm::SmallPtrSetImpl< PtrType >::insert(), location_ops(), and replaceVariableLocationOp().

◆ setRawLocation()

void llvm::DbgVariableRecord::setRawLocation ( Metadata * NewLocation )

inline

Use of this should generally be avoided; instead, replaceVariableLocationOp and addVariableLocationOps should be used where possible to avoid creating invalid state.

Definition at line 457 of file DebugProgramInstruction.h.

References assert(), and llvm::DebugValueUser::resetDebugValue().

Referenced by addVariableLocationOps(), and replaceVariableLocationOp().

◆ setVariable()

void llvm::DbgVariableRecord::setVariable ( DILocalVariable * NewVar )

inline

Definition at line 436 of file DebugProgramInstruction.h.

References Variable.

Referenced by fixupDebugInfoPostExtraction().

Friends And Related Function Documentation

◆ DebugValueUser

friend class DebugValueUser

friend

Definition at line 263 of file DebugProgramInstruction.h.

Member Data Documentation

◆ AddressExpression

DbgRecordParamRef<DIExpression> llvm::DbgVariableRecord::AddressExpression

Definition at line 287 of file DebugProgramInstruction.h.

Referenced by createDVRAssign(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), getAddressExpression(), getRawAddressExpression(), isIdenticalToWhenDefined(), and setAddressExpression().

◆ Expression

DbgRecordParamRef<DIExpression> llvm::DbgVariableRecord::Expression

Definition at line 286 of file DebugProgramInstruction.h.

◆ Type

LocationType llvm::DbgVariableRecord::Type

Classification of the debug-info record that this DbgVariableRecord represents.

Essentially, "is this a dbg.value or dbg.declare?". dbg.declares are not currently supported, but it would be trivial to do so. FIXME: We could use spare padding bits from DbgRecord for this.

Definition at line 279 of file DebugProgramInstruction.h.

Referenced by getType().

◆ Variable

DbgRecordParamRef<DILocalVariable> llvm::DbgVariableRecord::Variable

Definition at line 285 of file DebugProgramInstruction.h.

Referenced by createDVRAssign(), createLinkedDVRAssign(), createUnresolvedDbgVariableRecord(), getRawVariable(), getVariable(), isIdenticalToWhenDefined(), and setVariable().

The documentation for this class was generated from the following files:

include/llvm/IR/DebugProgramInstruction.h
lib/IR/AsmWriter.cpp
lib/IR/DebugProgramInstruction.cpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ LocationType

Constructor & Destructor Documentation

◆ DbgVariableRecord() [1/4]

◆ DbgVariableRecord() [2/4]

◆ DbgVariableRecord() [3/4]

◆ DbgVariableRecord() [4/4]

Member Function Documentation

◆ addVariableLocationOps()

◆ classof()

◆ clone()

◆ createDbgVariableRecord() [1/2]

◆ createDbgVariableRecord() [2/2]

◆ createDebugIntrinsic()

◆ createDVRAssign()

◆ createDVRDeclare() [1/2]

◆ createDVRDeclare() [2/2]

◆ createLinkedDVRAssign()

◆ createUnresolvedDbgVariableRecord()

◆ getAddress()

◆ getAddressExpression()

◆ getAssignID()

◆ getExpression()

◆ getFragmentSizeInBits()

◆ getNumVariableLocationOps()

◆ getRawAddress()

◆ getRawAddressExpression()

◆ getRawAssignID()

◆ getRawExpression()

◆ getRawLocation()

◆ getRawVariable()

◆ getType()

◆ getValue()

◆ getVariable()

◆ getVariableLocationOp()

◆ handleChangedLocation()

◆ hasArgList()

◆ hasValidLocation()

◆ isAddressOfVariable()

◆ isDbgAssign()

◆ isDbgDeclare()

◆ isDbgValue()

◆ isEquivalentTo()

◆ isIdenticalToWhenDefined()

◆ isKillAddress()

◆ isKillLocation()

◆ location_ops()

◆ print() [1/2]

◆ print() [2/2]

◆ replaceVariableLocationOp() [1/2]

◆ replaceVariableLocationOp() [2/2]

◆ setAddress()

◆ setAddressExpression()

◆ setAssignId()

◆ setExpression()

◆ setKillAddress()

◆ setKillLocation()

◆ setRawLocation()

◆ setVariable()

Friends And Related Function Documentation

◆ DebugValueUser

Member Data Documentation

◆ AddressExpression

◆ Expression

◆ Type

◆ Variable